I got the module from sf.net ,
the module is Wx-ActiveX-0.059901-wxperl0.26-wxmsw2.6.2-5.8.6.zip

You can also get it from cpan ,
they are same version 0.05 , and this is where I saw the example.

Now to answer your question:

1. I installed it using command line ppm (ppm install <ppd filename>) just as shown in readme.txt doc.

2. The Sourceforge.net doesn't have demo for Wx::ActiveX::Acrobat, I don't have problem with other aspects of the module Wx, I can build windows and use controls, it's just that the particular module Wx::ActiveX::Acrobat doesn't load pdf file for me as it is supposed to from what I've read in Cpan.

Thank you. I appreciate your effort.